Remove "stable/latest" in favor of strict versions

[CarpenterBlue]

I am 3.5 user. Sometimes, I need to look up answers but they lead to 404 or 4.x version of documentation because some concepts either didn't exist in my version or they exist now in 4.x.
This is entirely facilitated by the use of "stable/latest" URLs in the documentation that are being overwritten all the time, leading to tremendously bad user experience of Documentation. This problem will happen during every transition period between versions and affect Godot Documentation for years to come if not remedied.

[YuriSizov]

Hi! Unfortunately it will continue to be a problem at this point because existing links on external resources are not going anywhere. And now these links, which refer to stable or latest, can be expected to refer to any version, so we can't make safe assumptions and create redirects to one of them, if we were to remove them.

That said, we are aware of the problem and are discussing the best course of action. We will likely still have the latest branch in some form, but it would probably be renamed to "dev" or something like that, to indicate that this is an in-dev version of the documentation, not something to be referenced by when using Godot. As for stable, it will probably be removed completely, but that's not an easy design decision to make, as you need to be able to land on some "stable" version of the documentation when you don't specify the version.